Cavity-enhanced broadband photonic Rabi oscillation

A coherent coupling among different energy photons provided by nonlinear optical interaction is regarded as a photonic version of the Rabi oscillation. Cavity enhancement nonlinearity reduces requirement significantly and pushes scalability frequency-encoded circuit based on However, confinement in cavity severely limits number interactable frequency modes. Here we demonstrate wide-bandwidth efficient oscillation achieving full-cycle cavity-enhanced with monolithic integration. We also show its versatile manipulation beyond degree freedom such an all-optical control for polarizing geometric phase. Our results will open up full accessible to synthetic dimensional systems over wide modes well large-scale quantum information processing.